Natural seed fall in white pine (Pinus strobus L.) stands of varying density
By: [Raymond E. Graber]
Contributors: Northeastern Forest Experiment Station (Radnor, Pa.)
Series: USDA Forest Service research note -- NE-119; USDA Forest Service research note NE -- 119.
Publisher: U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station
Published: 1970
Place of publication: Upper Darby, Pa
Language: eng
Subjects: White pine; Seeds; Forests and forestry; Trees; Research
Notes: Caption title.

Includes bibliographical references.

Also available online.